I'm curious about the various photos of NASA (NLAX) S-1 engines floating around. There's not much documentation on them; so i'd like to ask if any of you know when and how they were used.
NASA's Alco switchers were S-2s. Both #1 and #2 were former U S Army units built in 1943.
http://www.rrpicturearchives.net/locoPi ... x?id=35711
http://www.rrpicturearchives.net/locoPi ... ?id=177381
Ed in Kentucky